OK, so pretty much every modern browser I have used over the years ends up having a RAM issue. My Chrome is no better then Firefox is.

I am fine with that, being that I have 16GB of RAM. Normal usage on my system I am using 8GB of RAM, most from the browser.

MY question though is if I have enough RAM left and CPU why does Chrome slow down if a website (only that specific website) gets near 1GB in size? I have to open the Task Manager (for Chrome) and close it, reopen it.

Chrome has many things running in the background we don't use regularly. I just cut them off when not in use. Makes Chrome much smoother for me.

MY question though is if I have enough RAM left and CPU why does Chrome slow down if a website (only that specific website) gets near 1GB in size? I have to open the Task Manager (for Chrome) and close it, reopen it.

The issue is why it slows down, even with RAM left to be used. Makes no sense.

It could slow down for a wide variety of reasons and high RAM usage could either be unrelated or only a symptom of the real problem. Unless you know the Chrome source code by heart there's no real way to tell.